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Re: underwater spray bar flood

Michael wrote for Bob:

> Subject: 
> > Since I had not installed any type of check valve on my  underwater
> >spray bar, I had in effect built a rather efficient siphon 
> > any thoughts on how or where should I install a check valve and 
> > does anyone think one of those $15.00 to $20.00 PVC types 
> > Bob Olesen
> > West Palm Beach
> Bob,
> If you drill a 1/16" hole into the down tube about a half-inch below
> the
> water level, you'll create an air gap that will break the siphon once
> the water has dropped to that level with no moving parts.  Point it
> toward the rear wall of your tank to miminize turbulence and
> clogging.
> Michael Rubin ~ San Francisco, sunny and 58deg F

Just be sure the hole in on the in-the-tank section of the siphon tube
or things could remain rather messy.  :-)

Scott H.

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